Type 3281

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3.

Materials

3.1. Bürkert resistApp

Bürkert resistApp – Chemical resistance chart

You want to ensure the reliability and durability of the materials in your individual application

case? Verify your combination of media and materials on our website or in our resistApp.

Start chemical resistance check

3.2. Material specifications

Note:

The globe control valve Type 3281 is supplied with various port connections. These connections are not shown completely. However, they

correspond to the material of the valve housing.

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1

2

Actuator

No.

Element

Material

1

Housing cover

PC (Polycarbonate)

2

Housing base

PPS (Polyphenylene sulfide)

Valve body

Nr.

Element

Material

3

Spindle guide

High-performance polymer

4

Sliding washers

High-performance

polymer

5

Guide piece

Stainless steel 1.4305

6

O-ring

NBR

7

Compression spring

Stainless steel

8

Spindle seal

PTFE (filled)/FKM, with

spring compensation

9

Pipe

Stainless steel 1.4404

10

Body seal

Graphite

11

Spindle

Stainless steel 1.4401

12

Control cone

Stainless steel 1.4571

13

Seat seal

PTFE sealing washer

14

Valve seat

Stainless steel 1.4571

15

Valve body

Stainless steel CF3M